Expansion-joint for metallic window-sashes.



R. DRUMMOND; EXPANSION JOINT FOR METALLIC WINDOW SASHES.

APPLIGATION FILED APE.24, 1913.

Patented Apr. 7, 191 1 s re an'r ROBERT S. DRUMMOND, 013 DETROIT, MICHIGAN, ASSIGNOR TO DETROIT STEEL PROD- UCTS COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

EXPANSION-JOINT son IVIETALLI C wmnow-sAsHns.

To all whom, it may concern:

Be it known that I, ROBERT S. DRUM- MOND, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and' useful Improvements in Expansion-Joints for Metallic WVindow-Sashes, of which the following is a specification, reference being had therein to the accompanying drawings.

The. invention relates to metallic window Fig. 3, showing modifications.

A is a metallic window-sash of any suitable construction, which is arranged in a window opening such as B in the wall G of the building. i To provide for expansion and contraction in the metallic sash, and

particularly-to provide for such expansion in case of fire, the mounting for the sash is constructed as follows: D is an outwardlyextending flange onthe side rail of the sash which is adapted to bear against a ledge 'or shoulder E formed on the sidewall of the window opening. F is a metallic bar, preferably an angle bar, which is also secured to the side wall by suitable means,-suc h as the expansion bolts G'anchored in apertures in said wall.- The bar F is positioned to bear against the'flange D and hold the same in contact with the shoulder E. This flange 1) does not, however, fill the entire space between the bar F and the shoulder E, as the width of the sash is less than the width of the window opening, so that the parts normally assume the position shown in Fig. 3. This will produce a weatherproof joint, but will not interfere with the expansion of the window frame, which is taken care of by the movement inward of the flange D be- Specification of Letters Patent.

Application filed April 24, 1913.

Serial No. 763,355.

In Fig. 4 a modified construction is illustrated, in which the metallic bar F is spaced from the bearing E to receive the entire Patented Apr. "2, 1914.

sash rail, this being shown as of angle sectlon. The inwardly-extending fiangeD of this rail is parallel to and bears against the bar F wnile the edge D of the angle flange bears against the shoulder E.

Fig. 5 shows another modification similar to Fig. 4:, but inwhich the flange D is parallel to and bears against the shoulder E, while the edge D of the angle flange bears against the flange of the bar- F.

Both of these modified constructions provide for expansion and contraction in a similar manner to the construction shown in Fig. 3.

That I claim as my invention is z,

1. The combination with a wall of a win dow having an angle-shaped bearing, of a metallic bar secured to one side of said Y bearing and having an outwardlyextending flange arrangedsubstantially parallel to the other face of said bearing and spaced therefrom, and a metallic sash arranged within said spaceand adapted to move laterally therein upon expansion, said bearing, bar

andsash forming a weather-proof'joint.

' 2; The combination with a wall of a win dow having an angle-shaped bearing, of a I metallic bar secured to one side of said bearing having an outwardly-extending flange arranged substantially parallel to the other face of said bearing and spaced there from, and a metallic sash having an outwardly-extending flange on its side rail arranged within said space and substantially parallel to the last-mentioned face of the bearing and engaging the same and said flange on the bar, the flange on the sash be- .ing tapered and forming a weather-proof ROBERT s. DRUMMOND.

the

Witnesses:

JAMES P. BARRY.

HENRI E. BOWMAN; 

